The SitePoint Forums have moved.

You can now find them here.
This forum is now closed to new posts, but you can browse existing content.
You can find out more information about the move and how to open a new account (if necessary) here.
If you get stuck you can get support by emailing forums@sitepoint.com

If this is your first visit, be sure to
check out the FAQ by clicking the
link above. You may have to register
before you can post: click the register link above to proceed. To start viewing messages,
select the forum that you want to visit from the selection below.

Im pretty sure you can use the default gz functions in php to do it, mind you that the user must have zlib enabled, or you or going to have to include zlib.dll and zlib.so ( might be php_zlib ) with your script and use the dl() function ( which can also be turned off by hosts ).

Hope that helps.

Eric Coleman
We're consentratin' on fallin' apart
We were contenders, now throwin' the fight
I just wanna believe, I just wanna believe in us

If the script is not for distribution, and just in use on your own machine, couldn't you just install a zip program that supports command line options and run it via the PHP script with system()? Just a thought..